实心圆柱形工件的超声探伤方法

(,412004)ULTRASONICTESTINGOFCYLINDERSLiuHui(ZhuzhouChemical(Group)Co.,HunanProvince)AVG,,,1,,11N,,N=FPK(1)FK,x3NPxPx=P0FKx(2)P0x3N,(2)2,F,B,,Px=Pf1+xax-f1+xa(3)Pxff=rö2raa=x,f=xö4P=P0FöKx(3),PB43122320003NDTVol.22No.3March2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.PB=P0F2Kx(4)22.1,,,B1,B2,501001n(n2)2.2,xf:(1)TB1xf=xbõn(5)(2)B1B2xf=2xB-xbõn(6)xBxbn2.3,2mm,PP=P0FõP24K2x2(7)$$=[PB]-[P]=20lgPBPPBP(4)(7),$=20lg2KxP2(8)$:($),B150%(80%),$2.4,,(7),,,,3200mm,AVG,200ö2,,2.5P20(1),3N=342.4=127.2200mm,(8),$=38dB,160mm,20dB(7),5.1mmAVG,6mm,4,,,1..:,1988.2.,1992,14(10):2743JB3963-854,.B.:,1985.85:1999207205(108),1.,:,1998.591-5952..:,1987.7-253,.,:,1998.121-171:1999211217531:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.